package com.atguigu;

public class Main {
    public static void main(String[] args) {
        System.out.println("Hello world!");
        System.out.println("Main.mainuser_login");
        System.out.println("user_register");
        System.out.println("master");
        System.out.println("zwf");
        System.out.println("Main.main");
        System.out.println("组员开发");
    }
}